1) 1,2,3,4,
2) 1,2,3,4,5,6,7,8,9 и т.д
1)
a=4*19+7
a=76+7
a=83
2)
a=4*24+7
a=96+7
a=103
<span>m
= (3 9/28 - 5 11/14) : 23 = (3 9/28 – 5 22/28) : 23 = - 2 13/28 : 23 = - 3/28</span><span>
</span><span>- 1 < m < 0</span>
А)<span> 250 : (y+7)=25
у+7=250:25
у+7=10
у=10-7
у=3
Проверка: 250: (3+7)= 250: 10 = 25
25=25
б)</span><span>46-z:12=38
</span> z:12=46-38
z:12=8
z=12*8
<span> z=96
</span>Проверка: 46-(96:12)=46-8=38
38=38.
Y = 1 3/14 - 2,7
y = 1 17/35